Joel best argues that knowledge, like most things, is socially constructed. this means that:
there is no reality we can discount knowledge from the hard sciences as less scientific because it fails to focus on the social world
all assessments of the world and what is happening in it are equally valid
it is important to carefully evaluate claims and evidence

It is important to carefully evaluate claims and evidence.

Explanation:

In the argument Joel Best said that the knowledge is socially constructed.Like knowing how to behave,act,talk in society the knowledge that we gain is also constructed socially.When we socialize we pass on the knowledge that we have and gain the knowledge form others.This is the benefit of socializing.